kernel/linux.git/arch/mips/include/asm/io.h, branch v6.2.2

Merge tag 'mips_6.0' of git://git.kernel.org/pub/scm/linux/kernel/git/mips/linux

2022-08-06T23:47:19+00:00

Pull MIPS updates from Thomas Bogendoerfer: - added support for Netgear WNR3500L v2 - removed support for VR41xx SoC and platforms based on it - cleanups and fixes * tag 'mips_6.0' of git://git.kernel.org/pub/scm/linux/kernel/git/mips/linux: (25 commits) MIPS: tlbex: Explicitly compare _PAGE_NO_EXEC against 0 Revert "MIPS: octeon: Remove vestiges of CONFIG_CAVIUM_RESERVE32" MIPS: Introduce CAVIUM_RESERVE32 Kconfig option MIPS: msi-octeon: eliminate kernel-doc warnings MIPS: Fix comment typo MIPS: BMIPS: Utilize cfe_die() for invalid DTB MIPS: CFE: Add cfe_die() MIPS: Fixed __debug_virt_addr_valid() MIPS: BCM47XX: Add support for Netgear WNR3500L v2 MIPS: Remove VR41xx support MIPS: dts: align gpio-key node names with dtschema MIPS: dts: correct gpio-keys names and properties MIPS: cpuinfo: Fix a warning for CONFIG_CPUMASK_OFFSTACK MIPS: Make phys_to_virt utilize __va() MIPS: vdso: Utilize __pa() for gic_pfn MIPS: mm: Use the bitmap API to allocate bitmaps MIPS: math-emu: Use the bitmap API to allocate bitmaps MIPS: Loongson64: Fix section mismatch warning mips: cavium-octeon: Fix missing of_node_put() in octeon2_usb_clocks_start MIPS: mscc: ocelot: enable FDMA usage ...

MIPS: Make phys_to_virt utilize __va()

2022-07-11T08:33:18+00:00

The implementation is exactly the same, so avoid open-coding it in two different locations. Signed-off-by: Florian Fainelli Reviewed-by: Serge Semin Signed-off-by: Thomas Bogendoerfer

arch/*/: remove CONFIG_VIRT_TO_BUS

2022-06-28T11:20:21+00:00

All architecture-independent users of virt_to_bus() and bus_to_virt() have been fixed to use the dma mapping interfaces or have been removed now. This means the definitions on most architectures, and the CONFIG_VIRT_TO_BUS symbol are now obsolete and can be removed. The only exceptions to this are a few network and scsi drivers for m68k Amiga and VME machines and ppc32 Macintosh. These drivers work correctly with the old interfaces and are probably not worth changing. On alpha and parisc, virt_to_bus() were still used in asm/floppy.h. alpha can use isa_virt_to_bus() like x86 does, and parisc can just open-code the virt_to_phys() here, as this is architecture specific code. I tried updating the bus-virt-phys-mapping.rst documentation, which started as an email from Linus to explain some details of the Linux-2.0 driver interfaces. The bits about virt_to_bus() were declared obsolete backin 2000, and the rest is not all that relevant any more, so in the end I just decided to remove the file completely. Reviewed-by: Geert Uytterhoeven Acked-by: Geert Uytterhoeven Acked-by: Michael Ellerman (powerpc) Acked-by: Helge Deller # parisc Signed-off-by: Arnd Bergmann

mm: remove xlate_dev_kmem_ptr()

2021-05-07T07:26:34+00:00

Since /dev/kmem has been removed, let's remove the xlate_dev_kmem_ptr() leftovers. Link: https://lkml.kernel.org/r/20210324102351.6932-3-david@redhat.com Signed-off-by: David Hildenbrand Acked-by: Geert Uytterhoeven Acked-by: Michal Hocko Cc: Linus Torvalds Cc: Greg Kroah-Hartman Cc: Richard Henderson Cc: Ivan Kokshaysky Cc: Matt Turner Cc: Russell King Cc: Brian Cain Cc: Geert Uytterhoeven Cc: Thomas Bogendoerfer Cc: "James E.J. Bottomley" Cc: Helge Deller Cc: Michael Ellerman Cc: Benjamin Herrenschmidt Cc: Paul Mackerras Cc: Heiko Carstens Cc: Vasily Gorbik Cc: Christian Borntraeger Cc: Yoshinori Sato Cc: Rich Felker Cc: "David S. Miller" Cc: Arnd Bergmann Cc: David Hildenbrand Cc: Krzysztof Kozlowski Cc: Mikulas Patocka Cc: Luc Van Oostenryck Cc: Mike Rapoport Cc: Palmer Dabbelt Cc: Luis Chamberlain Cc: Greentime Hu Cc: Sebastian Andrzej Siewior Cc: Randy Dunlap Cc: Jiaxun Yang Cc: "Peter Zijlstra (Intel)" Cc: Christophe Leroy Cc: Gerald Schaefer Cc: Niklas Schnelle Cc: Pierre Morel Cc: Ingo Molnar Cc: Kuninori Morimoto Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds

MIPS: Add support for CONFIG_DEBUG_VIRTUAL

2021-04-06T12:34:02+00:00

Provide hooks to intercept bad usages of virt_to_phys() and __pa_symbol() throughout the kernel. To make this possible, we need to rename the current implement of virt_to_phys() into __virt_to_phys_nodebug() and wrap it around depending on CONFIG_DEBUG_VIRTUAL. A similar thing is needed for __pa_symbol() which is now aliased to __phys_addr_symbol() whose implementation is either the direct return of RELOC_HIDE or goes through the debug version. Signed-off-by: Florian Fainelli Signed-off-by: Thomas Bogendoerfer

MIPS: Loongson64: Enlarge IO_SPACE_LIMIT

2020-07-28T20:49:53+00:00

It can be very big on LS7A PCH systems. Signed-off-by: Jiaxun Yang Signed-off-by: Thomas Bogendoerfer

mips: io.h: delete duplicated word

2020-07-26T08:14:58+00:00

Delete the repeated word "on". Signed-off-by: Randy Dunlap Cc: Thomas Bogendoerfer Cc: linux-mips@vger.kernel.org Signed-off-by: Thomas Bogendoerfer

MIPS: move ioremap_prot und iounmap out of line

2020-04-19T14:12:31+00:00

Neither of these interfaces is anywhere near the fast path. Move them out of line and avoid exposing implementation details to the drivers. Signed-off-by: Christoph Hellwig Signed-off-by: Thomas Bogendoerfer

MIPS: split out the 64-bit ioremap implementation

2020-04-19T14:11:08+00:00

Split out the mips64 ioremap implementation entirely, as it will never use page table based remapping. Signed-off-by: Christoph Hellwig Signed-off-by: Thomas Bogendoerfer

MIPS: merge __ioremap_mode into ioremap_prot

2020-04-19T14:10:24+00:00

There is no reason to have two ioremap with flags interfaces. Merge the historic mips __ioremap_mode into ioremap_prot which is a generic kernel interface. Signed-off-by: Christoph Hellwig Signed-off-by: Thomas Bogendoerfer